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revision 1.125 by jmc, Mon Jan 27 21:42:19 2003 UTC revision 1.538 by heimbach, Wed Aug 31 00:10:22 2005 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
8    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
9    o remove MINIMAL_TAVE_OUTPUT option ;
10      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
11    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
12      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
13    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
14    o add time-dependent SST, SSS control
15    
16    checkpoint57q_post
17    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
18    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
19      - bug was reported by Jean-Michel and Ian Fenty
20    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
21      update exp. cpl_aim+ocn output.
22    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
23      Needed for high-res. runs with large global files
24      to be able to limit tapelev size
25    o Changed some tests for adjoint:
26      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
27      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
28      * global_ocean.90x40x15/ back to default 3-level checkpointing
29    o Modifications to enable scripted COMMON to MODULE conversion
30      * verification/OpenAD/code/ has necessary scripts and description;
31      * converts, compiles and runs successfully;
32    
33    checkpoint57p_post
34    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
35    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
36      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
37    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
38    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
39      (was already the case for dissipation with mom_vecinv,
40       and also the case for grad.PhiHyd when staggered-timeStep)
41      This will allow to put dissipation out-off the AB time-stepping.
42     Unfortunately, affects truncation error. Update output of exp. that "fails"
43      (cg2d matching number) and leave the others for later: front_relax(10),
44      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
45      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
46    
47    checkpoint57o_post
48    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
49      (2) its ready to be documented during the 20050801 DocFest
50    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
51      for ideal_2D_oce and lab_sea on linux_ia32_g77
52    o set to #undef CTRL_SET_OLD_MAXCVARS_30
53      in global1x1_tot/code_seaice_adj to access indices 32, 33
54      (worth another tag)
55    
56    checkpoint57n_post
57    o adding precip control xx_precip 32
58    o adding swflux control xx_swflux 33
59    o Replacing 10 forcing penalty cost routines by 1 generic.
60    o Implementing partitioning in time-mean and variable adjustment
61      for atmos. state.
62    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
63    o in natl_box_adjoint:
64      * updated exp 1 to 10
65        (but does not have time-mean vs. variable split results yet)
66    o updated global1x1/*_seaice_adj/
67      to incorporate latest changes
68    o enable useSingleCpuIO for mdsio vector routines
69      (applies in particular to tapelev I/O)
70    o removed inefficient K-loop in all active_file*control*.F
71    
72    checkpoint57m_post
73    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
74      and advect_cs (use EXCH-2 and standard cs-32 grid files).
75    o pkg/exch2: filling of face-corner halo regions is optional
76      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
77    
78    checkpoint57l_post
79     tag before updating tutorials (pre-release-2)
80    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
81       for output and interpolation of input fields onto model grid)
82    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
83       Affects results of exp. rotating_tank ; update output.txt.
84    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
85          and taking the square quantity and/or using a fraction-weight field.
86    o fix aim_diagnostics_init.F mate numbers.
87    o add mnc output capability to diagnostics/diagstat and update
88      our cvsignore files for the ACSII output generated
89    
90    checkpoint57k_post
91    o lab_sea now uses diagnostics package and provides a suite of
92      new EXF diagnostics output.
93    
94    checkpoint57j_post
95    o exf
96      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
97        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
98        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
99      * extended diagnostics output
100        - now includes all EXF variables
101        - hs, hl moved to common block
102        - separate S/R for diagnostics, called after ctrl vector is added
103        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
104        - EXFqnet contains true Qnet (i.e. includes qsw)
105      * updated verif. lab_sea, global_with_exf
106      * Rearranging hflux (exf_mapfields -> exf_getforcing)
107        to ensure that diagnostics sees a true EXFqnet
108    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
109    o diagnostics pkg: change pointers so that 1 diagnostic can be used
110      several times with different frequencies.
111    o mnc-ify the thsice package as requested by Daniel Enderton
112      - the monitor--MNC output needs work
113      - many attributes need to be added (most are currently blank)
114    o mnc-ify theaim_v23 package as requested by Daniel Enderton
115      - many attributes need to be added (most are currently blank)
116    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
117    o add Sadourny like discretization to the 4th.O vorticity advection scheme
118    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
119      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
120         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
121    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
122     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
123    
124    checkpoint57i_post
125    o Diagnostics package was changed: diagnostic allocation is now deactivated
126      by setting an empty file name in the namelist (used to be by setting 0 frequency)
127    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
128      add 1rst Order upwind vertical Shear.
129    o add a quick fix for A/B checkpointing in OFFLINE mode
130    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
131      end-run around the C/Fortran linking horror in eesup/src/timers.F
132    o added pkg/runclock: allows user to terminate run based on wall clock
133    o added non-hydrostatic scaling parameter: nh_am2
134    o pkg/my82: futile attempt to make results compiler-independent by adding
135      some "_d 0", etc. no effect.
136    o for mnc output, fill the 'T' coordinate var with myTime and create a
137      separate 'iter' variable for iteration count
138    o pkg/diagnostics:
139      add new capability: output of Global/Regional & per-level statistics ;
140      tested against monitor output (including land & thSIce) on various exp.
141    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
142    
143    checkpoint57h_done
144      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
145      data.diagnostics, data.gchem, data.ptracers) is done.
146    
147    o pkg/diagnostics: prepare for Global/Regional statistics.
148      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
149    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
150      and rename it: DIFFERENT_MULTIPLE
151    
152    checkpoint57h_post
153    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
154    o pkg/diagnostics: change output frequency, now in seconds (instead
155      of Nb of iterations). This requires to change data.diagnostics.
156    checkpoint57h_pre
157    
158    o in mnc, let the user create the output dir if both mnc_outdir_date
159      and mnc_outdir_num are false
160    o add fflags() to pkg/diagnostics which allows one to specify, on a
161      per-file basis, the file precision [default behavior is unchanged]
162    o added diagnostics to pkg/kpp, including computation of mixed layer
163      depth based on a temperature/density criterion
164    o updated verification/natl_box to test the new pkg/kpp diagnostics
165    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
166    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
167    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
168      not mnc -- this mistake was found by JMC and is now corrected
169    
170    checkpoint57g_post
171    o add Adams-Bashforth 3rd Order time stepping:
172      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
173      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
174    checkpoint57g_pre
175    
176    o make lambda[Theta,Salt]ClimRelax spatially varying
177      (default remains spatially uniform constant based on tau)
178    o added new control variables
179      * init. uVel, vVel, etanN
180      * lambda[Theta,Salt]ClimRelax
181    o separate masks used for ctrl_pack/unpack 'from write_grid' output
182      (suggested by G. Forget)
183    
184    checkpoint57f_post
185    o add parameter "baseTime" = model base time = time at iteration zero
186      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
187      account for baseTime shift
188    o move Coriolis arrays from PARAMS.h to GRID.h
189    checkpoint57f_pre
190    
191    o mnc-ifying the seaice package
192    o introduced an alternative length scale calculation for use in the limiting
193      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
194    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
195    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
196      as well as grad(vort3).  Made it compatible with both approximate form
197      for the cubed sphere and full form of these gradients.  Added flag
198      useFullLeith to select between approximate and full form.  
199    o add "d0" in getcon.F to reduce differences between compilers/platforms
200      update output.txt of exp. fizhi-gridalt-hs
201    o change port_rand funtion to allow to set the seed.
202    o fix obscure MNC bug involving conversion between reals and integers
203      - it caused no problems with certain (eg. gcc, ifc) compilers but the
204        new version is now more standards-compliant
205    o adjoint-related modifications
206      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
207      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
208      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
209    
210    checkpoint57e_post
211    o Adding eddy stress controls a la Ferreira et al.
212    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
213    
214    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
215      update output.txt of exp. fizhi-gridalt-hs
216    o add more "Z" dimensions and associated coordinate vars to MNC
217    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
218    o parameter calendarDumps: when set, approximate months (30-31 days) and years
219      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
220      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
221      months and years.  Requires pkg/cal.
222    o diagnostics: add pickup functionality
223      - off by default for backwards compatibility
224      - current version only uses MDSIO -- MNC will be added
225    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
226    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
227    
228    checkpoint57d_post
229    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
230    o modify verification/ideal_2D_oce so that it tests the creation of mnc
231      output from the diagnostics package
232    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
233    o make genmake2 more portable by using ".$FS" instead of ".f" for more
234      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
235    o add coordinate variables to the MNC output from the diagnostics package
236    o change MNC-flags default value: true when useMNC=TRUE
237    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
238      the ability (off by default) to read the grid information using MNC
239    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
240    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
241    o do snap-shot diagnostics at the middle of the time-interval (instead of
242      at the end).
243    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
244      new test for AIM with thSIce + slab-ocean
245    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
246    o move state variable diagnostics to the beginning of the time step ;
247      (note: still needs some work specially for snap-shot diagnostics)
248      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
249    
250    checkpoint57c_post
251    o Change testing option (-ieee) to get closer agreement between g77 & ifort
252    o generate new output.txt files on faulks with g77 & the new -ieee option
253    checkpoint57c_pre
254    
255    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
256      update output.txt of exp. global_ocean.90x40x15
257    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
258      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
259    o add saltFlux(+File) forcing capability with periodicExternalForcing
260    o allow to use pkg diagnostics for GM-Redi & ThSIce output
261    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
262    o improvements for the MNC output from DIAGNOSTICS:
263      - correct handling of the unlimitied dimension
264      - all dims now have associated coordinate variables
265      - variables located at U, V, and Corner ("Z") points are now written
266        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
267        *all* data points are output
268    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
269    o added pkg/seaice/seaice_monitor.F
270    o mdsio_readfield.F can now read files visible only to master MPI process.
271    o pkg/seaice: some test code for ice-modified ocean stress
272    o exf_getffields interpolation defaults to bilinear for all scalar forcing
273      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
274      spurious negative numbers for precipitation and humidity.  Will cause
275      some small numerical differences for integrations using pkg/exf/exf_interp.F.
276    o pkg/ctrl/
277      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
278        May be enabled via doPackDiag
279      *  introduce z-scaling of
280         + gradient (doZscalePack) and
281         + control (doZscaleUnpack)
282    o pkg/mdsio/
283      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
284      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
285    
286    checkpoint57b_post
287    o simplify options in diagnostics_fill arguments (remove weird combinations)
288    o fix MNC coordinate variables so that they now contain per-face index
289      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
290      general, EXCH2 grids are only aligned to a "local" coordinate system
291    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
292    o Implement instantaneous output within pkg diagnostics:
293      setting a negative frequency in data.diagnostics produces
294     "snap-shot" output (as opposed to time-average if freq > 0)
295    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
296      NOTE: change ptracer diagnostics name: use 2 characters to work with
297            more than 9 tracers. Add also diagnostics of advect & diffus flux.
298    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
299      becomes the coordinate variable for the 'T' dimension
300    o add CF-style coordinate variables to MNC
301      - just a first cut:  numbers are meaningless on the cubesphere and
302        missing along the T axis but otherwise it works!
303    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
304    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
305    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
306      this is based directly on what the model compute, so that the content of
307      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
308    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
309    o clean up build options files for SunOS, in particular
310      - remove -traditional from xmakedepend
311      - change -xarch=v9 to -xarch=native for f77
312      - restore use of make (not gmake)
313      - add CC=gcc if using g77
314    o changes per discussion of AM, JMC, & EH3 today:
315      - move redundant "grid" variables out of "state" -- in preparation of
316        creating proper CF-style coordinate variables and in recognition
317        that any/all grid variables can be easily copied (eg. w/NCO) from
318        the grid files into any of the other NetCDF files
319      - *always* output grid variables with MDSIO (this will eventually be
320        changed)
321      - output MNC grid file if useMNC is true
322    o every instance of _END_MASTER() has been found and replaced with
323      _END_MASTER( myThid ) in order to satisfy certain picky Sun
324      preprocessors
325    o re-arrange diagnostics pkg initialisation:
326     - allow each package to extend the available diagnostics list
327     - add some checking and fix small problems (multi-threaded, ...)
328     - new S/R diagnostics_fill (replace fill_diagnostics):
329       look through the short list of active diag. (instead of the long list)
330       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
331    
332    checkpoint57a_post
333    o this set of changes restores TAMC compatibility
334      tested for global_ocean.90x40x15 adjoint on trough
335      (what a pain)
336    
337    checkpoint57a_pre
338    o some modifs in tools/build_options for sunos
339    o call ctrl_pack for ctrl at end for optimcycle=0
340    
341    checkpoint57
342    o add horizontal bi-harmonic viscosity for vertical velocity
343      - new parameter viscA4W (defaults to viscA4)
344      - affects only non-hydrostatic code
345      - to be done: no-slip lateral boundary conditions
346    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
347    o implement Implicit Vertical advection for pTracers
348    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
349      (implemented also for implicit vertical diffusion & advection)
350    o OBCS: extend application of tracer open boundary conditions
351      to a strip beyond the boundary of width Olx/Oly
352    o add call monitor to TAF set of required calls (flow directives)
353      and include in natl_box_adjoint
354    o untangle a few ifdefs related to cost, ctrl, autodiff
355      untangel a few ALLOW_ECCO_OPTIMIZATION
356    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
357      (theta2, salt2 in ecco_cost_weights)
358    
359    checkpoint56c_post
360    o OBCS as control variables
361      - update ctrl_ad_diff.list, obcs_ad_diff.list
362      - remove balance of obcs controls from default
363      - fix index bug nobcs in ctrl_init
364      - fix dummy fields filen in ctrl_pack
365      - add dummy weights for obcs
366    o lsopt: comment out fort.94 output
367    o optim:
368      - remove unnecessary header files
369      - adjusted namelists
370      - add xerbla.F to Makefile
371    o exf:
372      - multiple modifications of exf_check_range
373      - unit change in exf_init_runoff from [m/year] to [m/s]
374    o mdsio:
375      - i/o-vector change debugLevel from debLevA to debLevB
376    
377    checkpoint56b_post
378    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
379      is called from DO_THE_MODEL_IO
380      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
381      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
382      - clean up PTRACERS_WRITE_TIMEAVE a little
383    o add another verification experiment that tests both the cfc-pkg and
384      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
385      reactive tendencies treated inline with regular timestepping
386    o testreport previously did a lousy job of comparing small numbers, so
387      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
388      implemented in the little c-progam tmp_cmpnum.c which is embedded in
389      testreport.
390    o ptracers_monitor: bug fix for MPI
391    
392    checkpoint56a_post
393    o GCHEM: finish reorganizating the package
394      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
395        (introduces another 3D-array for each passive tracer, but only if
396        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
397        gchemTendency is not needed because the timestep is done separately)
398      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
399      - GCHEM is now---more or less cleanly---separate from PTRACERS
400      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
401        so clear to me how that should be done in a general way.
402    o CFC: improve formatting of output in CFC_ATMOS
403    o PTRACERS:
404      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
405        that ALL experiments with ptracers enable can be checked. This makes
406        GCHEM_MONITOR obsolete.
407      - include a runtime parameter PTRACERS_monitorFreq that defaults to
408        monitorFreq
409      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
410    o add PTRACERS (PTR0[1-5]) to testreport output
411    o exf_check_range:
412      * default changed to .TRUE.
413      * will check values for niter0 if debLevA, every timestep if debLevB
414      * STOP in exf_check_range if 'out of range'
415      * range chosen generous to allow for potential extema
416      TBD: a version with stricter range
417           permitted range would be runtime parameters
418    o GMredi:
419      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
420      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
421      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
422    o GCHEM:
423      - move call to GCHEM_FORCING_SEP, so that it is now called before
424        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
425      - introduced a useGCHEM runtime flag and applied it everywhere.
426      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
427        this flag is now only visible within GCHEM-pkg routines.
428      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
429        be replaced by a 3D array that is computed before thermodynamics; for
430        this, the tracer ID iTracer had to be included into the parameter list
431        of ptracers_forcing
432      - set up forward_step to call gchem_forcing, that will replace
433        gchem_forcing_int in ptracers_forcing
434      - cleaning up
435    o small cleaning of exch2: remove files that are also in eesupp/src
436    
437    checkpoint56
438    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
439    o mnc: cleanup "full" files--fixes out-of-memory problem
440    o ECCO-GODAE
441      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
442      * fully merged and updated from SIO code
443        windstress sign change affects
444        - exf_inscal_[u/v]stress
445        - sign of xx_tau[u/v] adjustments
446        - signs in cost_scat
447      * ctrl_get_gen: avoid update of tau[u/v] for first few days
448      * natl_box_adjoint updated and compressed
449      * 2-level checkpoint switch added
450        (tested in EXP. 1 of natl_box_adjoint)
451      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
452    o SVD
453      * first complete, non-hacked version for SVD calculations
454      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
455        performed via direct access files admtlm_vector.it????
456        (via ctrl_[un]pack)
457      * optimcycle is used for ARPACK iteration counter
458        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
459      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
460        and add linear transforms where necessary
461      * controls are initial/final SST, SSS (can be extended; need to check
462        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
463    o mdsio: filename info to both stderr, stdout
464    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
465      from sign change
466    
467    checkpoint55j_post
468    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
469      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
470    o add consistent build directories and .cvsignore files to verification
471    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
472    o make all subroutines 30 or less characters in length for certain older
473      compilers to work (a thorough search only turns up two routines in
474      pkg/ptracers)
475    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
476      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
477    
478    checkpoint55i_post
479    o change arrays for total vertical diffusivity (2.D if explicit,
480      3.D if implicit) ; each ptracer uses its own background value.
481    o added mnc/NetCDF output capability to ocn_compon_interf
482      - added bits to verification/cpl_aim+ocn so that it can run on
483        ITRDA and other clusters without the mpirun "-wd" option
484    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
485      configuration
486    o give MNC the ability to create additional files rather than
487      exceeding a specified file size limit "MNC_MAX_FILESIZE"
488      - the default is just less than 2GB which is a practical limit
489        on many systems
490    o Compute the non-local term using either KPP vertical diffusivity (=default)
491       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
492    
493    checkpoint55h_post
494    o add verification test "vermix"
495    o remove all the *_ioinc flags and replace with the single global
496      outputTypesInclusive flag
497    o allow to set a vertical profile of vertical diffusivity for T & S
498    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
499    o useMNC moved from data.mnc to data.pkg
500    
501    checkpoint55g_post
502    o Renaming carbon AD experiments to comply with testreport conventions
503    o Updating adjoint of Held-Suarez hs94.1x64x5
504    o Fixing directives for non-ECCO forward_step, after ECCO directives
505      have been fixed to avoid recomp. of do_oceanic_phys
506      Works well for global_ocean.90x40x15,
507      but recomp. issue remains for carbon
508    o Updating adjoint output for natl_box_adjoint after
509      pkg/ecco has been modified (see taga c55d_post)
510    
511    checkpoint55f_post
512    o rename to timeave_init_fixed
513    
514    checkpoint55e_post
515    o some delicate re-shuffle of store directives to avoid one
516      extra call of do_oceanic_physics
517      affects ecco_the_main_loop.F, do_oceanic_physics.F
518      checkpoint_lev1_directives.h
519    o NB: this may break global_ocean adjoint temporarily,
520      but it is clear how to fix it. Will do later, need this now.
521    
522    checkpoint55d_post
523    o ECCO specific cost function terms (up-to-date with 1x1 runs)
524    o ecco_cost_weights is modified to 1x1 runs
525    o modifs to allow observations to be read in as
526      single file or yearly files
527    o enable to read exf forcing fields as either
528      single file or yearly files (flag useExfYearlyFields)
529    checkpoint55d_pre
530    
531    o switch between 2-level and 3-level checkpointing
532    o add ability of MNC to write local and "partial" (eg. 2D slices where
533      the full 3D field is never actually stored) arrays to NetCDF files
534      with the correct (that is, the complete multi-dimensional) set of
535      array indicies
536      - used in mom_vecinv() to write the diagFreq output
537      - tested (demonstrated) in verification/aim.5l_cs
538    o further mnc-ification
539      - add verification/lab_sea to the list with mnc setups
540      - fix undefined mnc v-names in cd_code
541      - add kpp to mnc output (both snapshot and timeave)
542    o non-hydrostatic code
543      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
544        in calc_gw.F
545      - defaults to viscAh
546      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
547        friction or Leith) in non-hydrostatic mode, as long as there is
548        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
549    o pkg/cost
550      extend simple cost functions to treat time mean quantities
551      (T,U,V) via cost_accumulate_state from cost_tile
552    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
553        be 2 times larger than the minimum size the advection scheme requires.
554        now get a perfect conservation of salt in advect_cs test-exp (updated)
555    o GGL90 (Gaspar's TKE mixed layer)
556      - add horizontal diffusion of TKE, requires exchanges in
557        do_fields_blocking_exchanges, horizontal diffusivity is zero by
558        default. In OPA there is no horizontal diffusion of TKE but the
559        mixing coefficients are computed from a horizontal average of TKE of
560        6 points or so. I think that diffusion has a little more physical
561        justification.
562      - clean up ggl90_calc in the hope of reducing memory usage (this hope
563        was in vain)
564      - mask tke-variable in ggl90_init
565    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
566    o fix biharmonic diffusion on CS-grid.
567    o more obcs stuff
568      - added obcs_external_fields_load as an alternative to the EXF-pkg option
569        for reading boundary values. This routine is called from
570        obcs_prescribe_read
571      - updated obcs_check
572      - changed sponge layer relaxation parameter units for days to seconds
573      - turned off sponge layer by default
574      - changed argument list of OBCS_CALC to myTime+deltaTclock
575      - fixed about 35 bugs in obcs_external_fields_load
576    
577    checkpoint55c_post
578    o obcs stuff
579      - new runtime flags useOBCSprescribe, useOBCSbalance
580      - re-arranged obcs_calc
581      - moved exf_getobcs to obcs_prescibe_read
582        obcs_prescibe_read is called after ORLANSKI stuff
583        and independent of it (executable can contain all).
584      - updated obcs_check
585      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
586        These may be necessary only if tangential velocities are
587        prescribed at OB, not sure, needs testing.
588    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
589      which simplifies the calls and passes the ifc check-bounds test
590    
591    checkpoint55b_post
592    o add a 2D scalar, Z location, exchange_2 routine.
593    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
594      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
595      affects advect_cs results (for the wrong reason): update output.txt
596    o use a more standard discretization for biharmonic viscosity ;
597     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
598      affects results of dome set-up: update output.txt
599    o fix gad_advection.F (CubedSphere part), back to version 1.23
600    o fix bug in mom_vi_del2uv.F (CubedSphere part).
601    
602    checkpoint55a_post
603    o merged code to
604      * prescribe/read time-dependent open boundaries
605        (works in conjunction with exf, cal)
606      * sponge layer code for open boundaries
607      * each boundary N/S/E/W now has its own CPP option
608        (healthy for the adjoint)
609    
610    checkpoint55
611    o up-to-date adjoint of previous breaks
612      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
613      - global_ocean_ebm: adjoint still needs fix (TLM ok)
614      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
615      - carbon: * remove tr1-related adjoint verification
616                * add ptracer as control variable
617    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
618      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
619    
620    checkpoint54f_post
621    o in verification/carbin/ remove experiment related to
622      ALLOW_PASSIVE_TRACER (array tr1 etc)
623      code_ad/ input_ad/ results_ad
624    
625    o add two new packages
626      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
627        + subject to optimization (memory)
628      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
629        + subject to reordering (many GOTOs in the original code)
630        + so far opps is called for every (i,j) point, and then operates in
631          the vertical; one may want to reorder the scheme in order operate in
632          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
633          fields)
634    o overhaul of IO so that we now have flags for MDSIO and/or MNC
635      - all verification tests compile and run with linux_ia32_g77
636      - defaults are compatible with current input files--nothing
637        should change if you were not previously using MNC
638      - MNC output has been added in numerous places (eg. timeave)
639        but there are still a few writes not yet do-able with MNC
640        (this is in progress)
641      - flags now allow for either/or/both use of MDSIO and MNC and
642        documentation will soon follow
643      - numerous small formatting cleanups for ProTeX
644    o add version info (via BUILD_INFO.h) to MNC and stdout
645    
646    checkpoint54e_post
647    o add two new packages
648      - pp81 (Packanowski and Philander, 1981), Richardson number and
649        stratification dependent mixing
650      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
651      - these scheme operate in a similar manner as KPP (without ghat, of
652        course), however there is only one diffusivity that is used for both
653        temperature and salinity (and passive tracers)ç
654    o add offline package
655    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
656      provided by Stephanie Dutkiewicz
657    o genmake2: add ability to search for C compilers and cleanup test output
658      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
659    
660    checkpoint54d_post
661    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
662    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
663      leading to additional shift by 5 days each year of integration
664       (i.e. leading to considerable offset over the years)
665    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
666    o start with no AB and no initial filtering (staggerTimeStep):
667      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
668    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
669      (external loading & cpl import/export stay in forward_step.F)
670    o update coupling interface to work with new staggerTimeStep
671    o change MDSIO ptracers_pickup.
672    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
673    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
674    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
675    
676    checkpoint54c_post
677    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
678      this affects (truncation error) output.txt of test-exp:
679       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
680    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
681    o change Qnet to always be the net heat flux, (+upward).
682      affects (truncation error) output of natl_box exp.: updated
683    o define the max number of passive tracers in PTRACERS_SIZE.h
684    o start to test mnc routinely in exp0
685    o add sea-ice loading (sIceLoad) as a new forcing field.
686    
687    checkpoint54b_post
688    o add testreport "-j JOBS" option for parallel builds (tested and pretty
689       impressive on Altix and Opteron systems)
690    o diagnostics can now write NetCDF files through the mnc package
691    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
692    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
693    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
694      affects (truncation error) output of lab_sea & natl_box exp.: updated
695    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
696    
697    checkpoint54a_post
698    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
699    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
700    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
701    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
702      + internal_wave (shift in writing cg2d_ini_res)
703    checkpoint54a_pre
704    
705    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
706      - modified verification/lab_sea and natl_box_adjoint accordingly
707    
708    checkpoint54
709    checkpoint53g_post
710    o prepare splitting of thermodynamics: store convect.counter in common block
711    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
712      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
713    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
714    o new parameter "nShapS": allow to treat differently S from T (nShapT)
715    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
716    o restore adjointability
717    
718    checkpoint53f_post
719    o modifications that affect AIM experiment results (update output.txt):
720      - no advection of S at top interface Nr (pkg/generic_advdiff)
721      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
722    o AIM pkg:
723      - include stability function into surf.Flux derivative relative to Tsurf
724      - calculate clear-sky radiation & surface temp. change (for diagnostics)
725    
726    checkpoint53e_post
727    o merged cylindrical coord configuration
728    o added rotating_tank experiment
729    checkpoint53e_pre
730    
731    checkpoint53d_post
732    o faulks upgraded: re-generate output.txt that have changed:
733       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
734    o Added Bryan and Lewis, 1979, vertical diffusivity profile
735    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
736    o added Sadourny discretization of Coriolis
737      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
738      - re-enabled use of omega3 (useAbsVorticity)
739    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
740      vector-invariant equations
741      - note: does *NOT* yet use same variable visc. for no-slip BC's.
742    o recoded the lateral boundary conditions for non-hydrostatic w, this time
743      hopefully without new bugs
744      - still to do: biharmonic friction for non-hydrostatic w
745    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
746    o regenerated output for global_ocean_ebm (using -ieee)
747    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
748      of mom_common/
749      - simple re-arrangement of instructions within computing loop
750    checkpoint53d_pre
751    
752    checkpoint53c_post
753    o new version of coupler for AIM+thSIce and Ocean models
754     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
755     - land: change Evaporation of snow
756     - aim with thSIce: fix bug in snow-precip.
757    o changes to calc_gw.F
758     - bug fix for w^2 term near the bottom boundary
759     - (hopefully) improve the lateral slip boundary condtions for use with
760        partial/looped cells
761      - because the bug fix changes two verification experiments anyway (exp5
762        and plume on slope), change the lateral boundary condition from half slip
763        to the value of no_slip_sides
764    o ebm package wasnt quite up to the parallel task. Fixed that.
765    o Adjoint of EBM package + verification
766      * TLM OK
767      * ADM not sufficient accuracy yet (needs further testing)
768    
769    checkpoint53b_post
770    o Commiting new energy balance model to repository
771      * package is pkg/ebm
772      * verif. is verification/global_ocean_ebm
773      * references are in ebm_driver.F
774    C      * X. Wang, P. Stone and J. Marotzke, 1999:
775    C        Global thermohaline circulation. Part I:
776    C        Sensitivity to atmospheric moisture transport.
777    C        J. Climate 12(1), 71-82
778    C      * X. Wang, P. Stone and J. Marotzke, 1999:
779    C        Global thermohaline circulation. Part II:
780    C        Sensitivity with interactive transport.
781    C        J. Climate 12(1), 83-91
782    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
783    C        Destabilization of the thermohaline circulation
784    C        by atmospheric eddy transports.
785    C        J. Climate 7(12), 1870-1882
786    o Will need long integration testing.
787    checkpoint53b_pre
788    
789    o created pkg/mom_common in preparation for variable viscosity code
790    o renamed and split ini_mnc_io
791    o pkg/land: only liquid water can diffuse or run-off
792    o AIM using land: soil wetness availability account for snow
793    o added printMapIncludesZeros to EEPARMS namelist
794    
795    checkpoint53a_post
796    o restore TAMC compatiility for exf_constants.h
797      (no usage of _d in .h)
798    o Additional storing in KPP in an attempt to fix
799      TAMC problem with adjoint of KPP code.
800      (no success...)
801      Identical code works fine with TAF.
802    o Fixed verification/natl_box_adjoint experiments.
803      Initial conditions for Experiments 4 and 5 are now
804      set to "SEAICE_initialHEFF=0", which is more reasonable,
805      and hence gives results closer to that of Experiment 2.
806      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
807    
808    checkpoint53
809    o stable checkpoint with up to date adjoint
810      TLM tests only run for 1st grdchk at the moment. Its unclear if
811      this is a code problem or a problem with resetting code for g_
812      variables that is being autogenerated wrong.
813      Otherwise:
814       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
815       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
816         are both still in chaos following their security messes.
817    
818    checkpoint52n_post
819    o various build (mostly genmake2) changes including:
820      - ability to build/run more easily within Cygwin and MacOS X
821      - more complicated Makefiles with a stronger dependence on Gnu Make
822    o pkg/seaice modifications
823      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
824        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
825        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
826      - changed proxy for geostrophic velocity and updated
827        verification/lab_sea/results/* accordingly
828      - removed ADI dynamic solver from pkg/seaice
829      - replaced all occurrences of 1/CSTICE or 1/CSUICE
830        they caused a segmentation fault under certain circumstances
831      - removed unused field WATR
832    o bug fix in exf-package:
833      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
834         now reflect that.
835    o small fixes in the cal-package:
836      - set reference date to first of January for the 'model'-calendar
837      - failing of cal_CheckDate in cal_FullDate now actually results in a
838        warning
839    o small modifications in exf-package to increase flexibility:
840      - change climtempfreeze from a constant to a runtime parameter that
841        is specified in data.exf_clim (default = -1.9)
842      - introduce runtime parameter windstressmax (default = 2.0) that is
843        specified in data.exf
844    o fix in pkg/thsice:
845      - update Evap (Tsf changes) to be consistent with Latent heat flux
846      - maintain snow precipitation unchanged (even if Tsf >=0).
847     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
848    
849    checkpoint52m_post
850    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
851      this does not change any of the results, because myIter=0 in swfrac always
852      lead to jwtype=2 (the default anyway), but the call makes little sense
853      as a default
854    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
855    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
856      atmospheric model (AIM) to use it ; add a "slab ocean" component.
857    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
858    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
859    o extending useSingleCpuIO option to work with new exch2 I/O format
860      - old-style, missing-tile I/O is still accessible by defining CPP
861        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
862    o monitor package can write to NetCDF files and/or STDOUT
863    o fix re-definition bug in MNC_GRID_INIT_ALL()
864    o doc/api_reference added
865      - a framework for building an API Reference Manual using all
866        the "protex" comments embedded in the code
867      - see pkg/generic_advdiff, pkg/mnc for examples
868    o MNC:
869      - make myThid the last argument for all subroutines
870      - new default for the grid files: NO halos
871      - add useMNC and other run-time flags
872      - separate per-file-group handling of the unlimited dimension
873      - early initialization of MNC w/ flags read at the eeboot stage
874        and lookup tables set in initialize_fixed
875      - write all MNC output to a freshly-created directory
876    o thermodynamics sea-ice (thsice) is now tested with testreport.
877    o test exp. advect_cs: use the standard cs32 grid ; update output.
878    o Added functionality to grdchk:
879      pick global i,j,k position (or nearest wet) where to perform check.
880    
881    checkpoint52l_post
882    o new land formulation:
883      a) use ground enthalpy as prognostic variable to ensure exact
884         energy conservation.
885      b) account for water temperature and for latent heat of freezing
886         in all processes (rain, run-off, ground storage)
887      c) compute surface and ground temperature implicitly.
888    o aim_v23 modification for new land model:
889      a) Treat separately land / ocean / sea-ice surface fluxes
890         to allow implicit computation of land & sea-ice surface temp.
891      b) add snow precipitation.
892    checkpoint52l_pre
893    
894    o fix problem (when 1 tile is empty) in min/max monitor.
895    o fix bug in timeAve (u,vZetatave in common block)
896    o no restoring terms under ice for pkg/seaice
897    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
898    o bug fix for pkg/seaice pickups
899    o change MNC call locations and add coordinate attributes
900    o mask vorticity at the corner ; affects global_ocean.cs output
901    o fix ini_curvilinear_grid ; test CS experiments with mpi
902    o aim.5l_cs: modify sea-ice fraction input file ; update output
903    o exf: Adding simple range check routine for exf fields after read
904    
905    checkpoint52k_post
906    o removed top-level directory "diags"
907      - we migrated these functions to pkg/timeave a long time ago
908    o fixed bug introduced in pkg/monitor
909    o accuracy ctrlprec = 32 insuffient for gradient checks using
910      averaged fields (I/O via cost_averages)
911      -> use ctrl.h in active_file*.F to control I/O precision.
912    o paramter list of CALL ADTHE_MAIN_LOOP
913    o added initial do_the_model_io to ecco
914    o set all ...Freq to zero after cost_final
915      taveFreq, dumpFreq, pChkptFreq
916    o MAIN and ECCO differentiability restored
917    
918    checkpoint52j_post
919    o fix nchklev in tamc.h for global_ocean...
920    o Bringing flow and store directives up-to-date
921    o Really weird thing!
922      call do_the_model_io from the_main_loop with parameters
923      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
924      TAF places a faulty re-call of initialise_varia
925      after cost_final call which should not be there!
926    checkpoint52j_pre
927    
928    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
929      error messages
930    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
931    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
932      debug output
933    o modfied mdsio_writefield.F to handle non-global files under exch2
934    o update AIM Cubed-Sphere exp (aim.5l_cs):
935      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
936    o update AIM Equatorial Channel exp:
937      use standard aim_v23 pkg and change the SST fields to be more realistic.
938    o globalFile now works with exch2
939    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
940      mon_vort3.F to make exch2 friendly with >1 tile per cube face
941    o limit timeave output for hi-res integrations
942    
943    checkpoint52i_post
944    o removed CPP_EEOPTIONS.h from verification/*/code
945    o updated the tiling for global_ocean_pressure
946    checkpoint52i_pre
947    
948    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
949      the old pkg/aim).
950    
951    checkpoint52h_pre
952    o shortened offending lines in exch2_send_rx?.template
953    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
954    o genmake2: add build & execute test for NetCDF code
955    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
956      old grid files, moved CPP_EEMACROS.h to pkg/exch2
957    o added useSingleCPUIO flag to monitor.F and mon_out.F
958    o added temporary hack for sea-ice dynamics on the cube:
959      metric terms are ignored and it is assumed that
960      there is no sea-ice on cube faces 1, 2, 4, and 5.
961    
962    checkpoint52f_post
963    o added exch2 cube routines to pkg/exch2
964    o modified hs94.cs-32x32x5 to use it
965    o added new grid files to hs94.cs-32x32x5
966    checkpoint52f_pre
967    
968    checkpoint52e_post
969    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
970      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
971    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
972      to work with implicit vertical advection and AB ;
973    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
974    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
975     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
976    checkpoint52e_pre
977    
978    o fix bug in impldiff when Nr=1 or Nr=2.
979    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
980    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
981    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
982      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
983    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
984    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
985    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
986    
987    checkpoint52d_post
988    o re-tiled many expts to allow comparison in multi-processor mode
989      - updated output accordingly
990      - changed hs94.128x64x5 to use intial T from file rather than use the
991        random number generator
992    o add infrastructure in model routines for fizhi and gridalt packages
993    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
994    o changes to permit hi-res, cubed-sphere, configuration
995      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
996      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
997      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
998        of surface winds for the cube
999      (A verification experiment, based on global_ocean.cs32x15, but with
1000       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1001       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1002       complete with example surface forcing files and matlab scripts to look
1003       at the output and compare it with that of global_ocean.cs32x15.)
1004    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1005       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1006       to conform to the common rule.
1007    o check-in the first version of the coupler + interfaces for multi-components
1008       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1009       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1010       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1011       - ocean and atmos. share the same horizontal grid (no interpolation).
1012       - exchanges between component and coupler is done in forward_step
1013    o new verification experiment, cpl_aim+ocn:
1014       coupled ocean - AIM atmosphere on cs32 grid.
1015    
1016    checkpoint52d_pre
1017    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1018    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1019    
1020    checkpoint52c_post
1021    o Fixing OPTIONS files for use of exf:
1022      - ALLOW_ECCO not needed
1023      - ECCO_CPPOPTIONS.h should not be included from
1024        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1025        as has been the case in the past
1026      - All cal/exf related options are currently set in
1027        single header file. Should remain so until we
1028        agree on a consistent new policy.
1029    o Removed all CPP options for cal package.
1030      cal has no more CPP options.
1031    o modified STOREs in GAD_ADVECTION
1032    o corrected key comp. for passkey
1033    
1034    checkpoint52b_post
1035    o new version: "thsice" of thermodynamic sea-ice pkg:
1036     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1037     - modify fluxes but do not change theta directly;
1038     - light cleaning of bulk_force pkg (still needed with thsice).
1039     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1040       + output_thsice.txt to test thsice & bulk_force pkgs.
1041    o put back grid & coriolis monitor output.
1042    checkpoint52b_pre
1043    
1044    o call "do_the_model_io" at the beginning (=> dump initial state)
1045    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1046    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1047      (need info on NUMBER_OF_PTRACERS)
1048    o missing PTRACERS headers in some routines
1049    o default tamc.h in pkg/autodiff supposed to crash
1050      to ensure proper customization
1051    
1052    checkpoint52a_post
1053    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1054      - moved surfaceTendencyTice from pkg/seaice to main code
1055      - subroutine FREEZE_SURFACE now limits only surface temperature
1056        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1057        => new output.txt for global_ocean.cs32x15 & global_with_exf
1058      - keep the old version of FREEZE for backward compatibility;
1059        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1060      - corresponding modifs for TAF directives
1061    o added surface flux output variables to TIMEAVE_STATVARS
1062    o time-averaged output for pkg/ptracers
1063    o fix problem with ECCO-related divided adjoint
1064      snapshot file was missing some ad-variables,
1065      but no warning issued by TAF
1066    
1067    checkpoint52a_pre
1068    o some bug fixes for #undef REAL4_IS_SLOW
1069    
1070    checkpoint52 = ecco_c52_e35
1071    o after testing adjoints of checkpoint51u_post
1072    
1073    checkpoint51u_post
1074    o this is the post-merge tag of the ecco-branch
1075      (needs another clean checkout and re-testing)
1076    o various natl_box_adjoint configs and results
1077      but no input fields
1078    o obcs adjoint not yet merged!
1079    o adding ECCO global 1x1 and 2x2 degree configs
1080    o updated/extended some store directives for seaice
1081    o pkg/ecco now containes ecco-specific part of cost function
1082    o top level routines the_main_loop, forward_step
1083      supersede those in model/src/
1084      previous input data.cost now in data.ecco
1085      (new namelist ecco_cost_nml)
1086    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1087    
1088    checkpoint51t_post
1089    o this is the pre-merge tag of the ecco-branch
1090    
1091    checkpoint51s_post
1092    o cleanup: removed various obsolete #define-s
1093    o pkg/grdchk
1094      - renamed 'ph-grd 3' to 'grad-res'
1095      - merged from ecco-branch
1096        (remaining bug fixes for obcs gradient checks)
1097      - additional high-precision output for testreport
1098        (grep for 'precision_grdchk_result')
1099    
1100    checkpoint51r_post
1101    o cleaned up or removed CPP_OPTIONS.h files
1102    o updated results for some of the tests to reflect the new
1103      optfiles (-ieee: -O0 instead of -O3)
1104    
1105    checkpoint51q_post
1106    o cd_code:
1107      - moved cd_scheme.F -> cd_code_scheme.F
1108      - separate read_checkpoint from cd_code_ini_vars.F
1109      - separated cd_code part from write_checkpoint
1110      - updated AD_SOURCE, generated .flow
1111      - added CD_CODE_VARS.h to the_main_loop
1112      - Moving cd_code specific store dir.s to pkg/cd_code
1113    o ctrl package totally restructured
1114      - pack/unpack now optional and decoupled from
1115        xx_/adxx_ I/O
1116      - ctrl_pack/unpack cleaned
1117        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1118      - confined inclusion of AD_CONFIG.h to where necessary.
1119    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1120    
1121    checkpoint51p_post
1122    o create initial cd_code package
1123      - WARNING: the initialization of fields within packages
1124        is broken because INI_FIELDS (where READ_CHECKPOINT is
1125        called) is called *before* PACKAGES_INIT_VARIABLES.
1126        This seems to be backwards since
1127        1) its important to initially zero the entire field including
1128           the "halo" region
1129        2) zeroing needs to be done *before* reading pickup info
1130           and the pickup call might or might not happen in any
1131           particular run
1132      - this needs an overhaul for R2
1133    o cleanup verification/*/code/GMREDI_OPTIONS.h
1134    o cleanup testreport
1135    
1136    checkpoint51o_post
1137    o bringing AD-related verif's up to date with genmake2
1138      - carbon/
1139      - global_ocean.90x40x15/
1140      - hs.94.1x64x5/
1141      - (front_relax/ )
1142    o (more) consistent directory structure for AD-related verif.'s
1143    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1144    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1145    o bug fix in find_alpha.F for MDJWF:
1146      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1147        change rho -> rho-rhoConst
1148      - replace call find_rho to find_rhonum
1149    o initialisation of rFlx extended to full array (required by TAF)
1150      and shifted to thermodynamics
1151    o removed PTRACERS.h in ptracers routine
1152    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1153    o Correcting initialisations for fVerU, fVerV.
1154    o helping TAF to recognize dependency on kUp for
1155      fVerU, fVerV
1156    o Replacing delZ by delR in pkg/ctrl/
1157    checkpoint51o_pre
1158    
1159    o undid all of cp51 pending some cleanups and discussion
1160    o added the [#include "AD_CONFIG.h"] statement to all files that need
1161       it for adjoint/tl #defines
1162     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1163     o removed tools/genmake since it no longer works
1164    
1165    checkpoint51n_post
1166    o modifications to make FREEZE flux visible to pkg/kpp
1167      - moved surfaceTendencyTice from pkg/seaice to main code
1168      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1169      - subroutine FREEZE now limits only surface temperature
1170        (this means new output.txt for global_ocean.90x40x15,
1171         global_ocean.cs32x15, and global_with_exf)
1172    o added surface flux output variables to TIMEAVE_STATVARS
1173    
1174    checkpoint51n_pre
1175    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1176    o added [#include "AD_CONFIG.h"] to all files that use the following
1177      defines:
1178      - ALLOW_ADJOINT_RUN
1179      - ALLOW_TANGENTLINEAR_RUN
1180      - ALLOW_ECCO_OPTIMIZATION
1181    
1182    checkpoint51m_post
1183    o incorporating changes to get TAMC/TAF working in genmake2
1184      - added new TAMC/TAF targets to the Makefile
1185      - various cleanups related to package handling
1186      - these changes should have no impact on the forward model
1187    
1188    checkpoint51l_post
1189    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1190     - faster algorithm for cal_addtime.F
1191     - higher precision arithmetic, where needed
1192     - pkg/exf *startdate variables changed from calendar date to
1193       model integration time
1194    
1195    checkpoint51l_pre
1196    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1197    o enable to apply restoring on S & T only in a latitude band.
1198    o update output (external_forcing_surf modif. change truncation errors)
1199       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1200    
1201    checkpoint51k_post
1202    o change default to: useNHMTerms=.FALSE.
1203     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1204       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1205     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1206        exp1, ideal_2D_oce
1207     - change data file of oceanic exp (leave the results unchanged for now)
1208       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1209    o set gravitySign automatically according to the vertical coordinate used
1210      (and change sign: back to "logical" value: +1 when R increases downward)
1211    o added an include barrier to the default CPP_OPTIONS.h and
1212      removed the #include "PACKAGES_CONFIG.h" from it
1213    o fix a bug in mom_fluxform (from chk51j_post)
1214    
1215    checkpoint51j_post
1216    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1217    o adjusted some flow directives (dynamics, thermodynamics)
1218    o added cubed-sphere case to test cost function
1219    o heckpoint_lev?_directives.h now include
1220      pkg-specific directives, whenever those are enabled.
1221    o Moving pkg-specific flow directives to corresponding pkg
1222      Moving pkg-specific differentiation list to corresponding pkg
1223      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1224      ---> conventions are
1225           - pkg_ad.flow
1226           - pkg_ad_diff.list
1227           - pkg_ad_check_lev?_dir.h
1228    
1229    checkpoint51i_post
1230    o merge of the branch-genmake2
1231      - knowingly breaks the older genmake
1232      - automatic generation of all ALLOW_${PKG_NAME} defines
1233      - new testreport supersedes older testscript
1234    o large number of package inclusion and header cleanups
1235    checkpoint51i_pre
1236    
1237    o new output for adjoin of global ocean vector invariant
1238    o fix for checkpoint of thermodynamic seaice and bulk_force
1239    o Steph gchem various cleanups
1240    
1241    checkpoint 51h_pre
1242    o fixed some single quotes
1243    o modify gchem pkg to be more versatile
1244    o modifications to clean up dic pkg
1245    o add pkg/cfc
1246    
1247    checkpoint51g_post
1248    o provide links for ARPACK and ADM*TLM
1249    o start removing verification/vero/
1250    o update AD-related stuff
1251      (in particular some IF-statements in model/src/ routines)
1252    o adding to verification/global_ocean.90x40x15/ adjoint of
1253      vector invariant setup
1254    
1255    checkpoint51f_post
1256    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1257    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1258      of tracer Green's fucntions for ocean inversion project.
1259    
1260    checkpoint51f_pre
1261    o Added on-the-fly spatial interpolation capability
1262        "USE_EXF_INTERPOLATION" to pkg/exf.
1263      - This is a temporary Cartesian-grid hack until
1264        the super-duper ESMF coupler becomes available.
1265      - See verification/global_with_exf/README for usage example.
1266      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1267        flags and modified pkg/seaice accordingly.
1268    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1269        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1270        non-local transport term.
1271    
1272    checkpoint51e_post
1273    o pkg/mom_vecinv:
1274      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1275      - add time-ave diagnostic of vorticity advection.
1276    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1277    o atmospheric geopotential: - include water vapor effect;
1278                                - use p^kappa in p* scaling.
1279    o land pkg: read initial state from files.
1280    o AIM : add stratospheric drag in the upper level
1281    
1282    checkpoint51d_post
1283    o change function ILNBLNK (=> last non-blank char.) to return zero
1284      (instead of the string length) when the string. char is empty
1285    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1286    o modif's to restore TAMC compatibility
1287      - avoid "_d" constructs in PARAMETER declarations
1288      - avoid interrupting lines by comment lines
1289    o Use cluster local disks for purely local I/O
1290      vs. globally visible disks needed for ctrl stuff
1291      (merged from ecco-branch)
1292      - new active_file_loc... and mdsio_..._loc routines
1293      - affected packages: autodiff, ctrl, grdchk, mdsio
1294    
1295    checkpoint51c_post
1296    o introducing integer flag debugLevel
1297      - debLevZero: suppress all output
1298      - debLevA: standard
1299      - debLevB: equivalent to current debugMode=.TRUE.
1300    o introducing pathname variable mdsioLocalDir for mdsio
1301      that can be specified at runtime
1302      (relevant for cluster I/O to local disk)
1303    `
1304    >>>checkpoint51b_post
1305    adjoint of ptracers
1306    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1307    o extended state in checkpoint_lev?, etc.
1308    o alternative ctrl/cost with tr1 or ptracer
1309    o new comlev1_bibj_ptracers
1310    o new ptracers.flow
1311    o made ptracers_forcing same as external_forcing_s
1312    o added verification for adjoint with ptracers
1313      - adm. grdchk fail so far
1314      - tlm. grdchk OK
1315      - checked tapelev/comlev recomputations: OK
1316    <<<checkpoint51b_pre
1317    
1318    checkpoint51a_post
1319    o added code for biogeochemistry package
1320      - new pkgs: dic, gchem
1321      - new subroutine in ptracers
1322    o modify code for biogeo packages
1323      - in model/src and pkg/ptracers
1324    
1325    checkpoint51
1326    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1327      - autodiff, ctrl, exf, grdchk, seaice
1328      kept separate packages
1329      - cost, ecco, obcs
1330    o updating verification/internal_wave, verification/lab_sea
1331      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1332    
1333    checkpoint50i_post
1334    o Preparing next differentiable checkpoint and sync
1335      of MAIN vs. ecco-branch
1336      - 1st step: this one is differentiable
1337      - 2nd step: next(! not this) checkpoint will have updated packages
1338                  from ecco-branch)
1339    
1340    checkpoint50h_post
1341    o new package "land": provide surface BC for AIM.
1342    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1343    o AIM: use true log-P extrapolation for near surface temp (= as in
1344        F.Molteni paper) ; update aim.5l_cs output.
1345    o New variable in PARM03 for more flexible pickups
1346    o somewhat cleaned package initialisation sequence for
1347      ctrl/ cost/ ecco/ in packages_... routines
1348    
1349    checkpoint50g_post
1350    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1351      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1352      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1353        made the default because of faster convergence than ADI
1354    
1355    checkpoint50f_post
1356    o exf totally restructured
1357      - replaced all exf_set_ routines by one generic exf_set_gen.F
1358        and made sure it's still differentiable
1359      - split exf_getffields.F into new exf_bulkformulae.F
1360      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1361      - updated adjoint/makefile and relevant verif. accordingly
1362    
1363    checkpoint50f_pre
1364     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1365          + change Evap over land. (update aim.5l_cs output)
1366     o added missing .cvsignores and made uniform across expts
1367     o changed configuration of tidal_basin_2d expt
1368     o added pkg/debug functions for tracing code in fatal crashes
1369     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1370     o new fn in pkg/monitor to stop model if solution grows too big
1371     o removed lots of single quotes from comments
1372    
1373    checkpoint50e_post
1374    o make KPP work with PTRACERS
1375     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1376       nearly a copy of kpp_transport_s
1377     - there is no analogue to SurfaceTendencyS, so I have to use
1378       gPtr(of the surface layer) instead
1379    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1380    checkpoint50e_pre
1381    
1382    checkpoint50d_post
1383    o change kpp output from multiple-record state files to single-record state
1384      files analogous to write_state.F
1385    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1386      analogous to the cg2d-related output.
1387    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1388      so that writing to internal file fn (with length 512) fails.
1389    checkpoint50d_pre
1390    
1391    checkpoint50c_post
1392    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1393    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1394    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1395    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1396    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1397    
1398    checkpoint50c_pre
1399    Merging from release1_p13:
1400    o bug fix for pkg/seaice dynamic solver
1401    o Added SEAICE_initialHEFF to pkg/seaice
1402    
1403    checkpoint50b_post
1404    o store u*,v* in gU,V instead of in guNm1,gvNm1
1405    o in order to put the momForcing out of the Adams-Bashforth:
1406      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1407      to timestep.F
1408    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1409    o re-generate output for highly sensitive test-exp:
1410       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1411    
1412    checkpoint50b_pre
1413    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1414    o corrected CPP option mismatch in exf_Bulk... functions for case
1415      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1416    
1417    checkpoint50a_post
1418    o Bug fix for merging between c50 and KPP.
1419      ikey was passed from thermodynamics to kpp_calc via
1420      common block rather than being recomputed in kpp_calc,
1421      in contradiction with new key itdkey.
1422      New key ikppkey created, and tamc.h headers updated.
1423    
1424    checkpoint50
1425    - 2nd step of merge with ecco-branch:
1426      merge changes in ecco-branch back into main trunk
1427    - bug fix in find_alpha
1428    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1429    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1430    - merged some sliced AD support routines
1431    
1432    checkpoint49
1433    merged from ecco-branch:
1434    o exf:
1435      - Enable initialisation of forcing fields to constant
1436        (runtime) values.
1437      - in exf_getffields.F
1438        Reduce i-/j-loop to interior domain, discarding overlaps.
1439        That also fixes wrong TAF-key computations for key_1, key_2
1440        with bulf formulae.
1441      - exf_init.F modify #ifdef for exf_init_evap
1442      - exf_getffieldrec.F, ctrl_getrec.F
1443        The following INT-usages are not safe:
1444          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1445          fldcount = int(fldsecs/fldperiod) + 1
1446        and were modified.
1447    o autodiff: checkpoint_lev...
1448      - updated storing for bulk formulae (some arrays were missing)
1449      - added state for seaice package
1450      - synchronized with main branch
1451    o DIVA:
1452      Modif.s in
1453      - the_main_loop.F
1454      - the_model_main.F
1455      and added cost_final_restore.F cost_final_store.F
1456      o With these changes, it is possible to fully separate
1457        the first forward run to compute the cost function (mdthe_main_loop)
1458        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1459        into separate model executions.
1460        This enables better tuning of DIVA to given queue sizes.
1461      o Loss of cost function value in consecutive DIVA runs is
1462        fixed by storing to 'costfinal' file.
1463      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1464        beginning/end of adjoint integration is accounted for.
1465      The current changes apply to TAF-1.4.26.
1466      TAF has one remaining bug, requiring one manual change
1467      (see MITgcm manual).
1468    o cal: synchronized between MAIN and ecco-branch
1469    
1470    checkpoint48i_post
1471    o Changes to restore differentiability of code w.r.t. previous tag
1472      (mostly adding new routines to make list and replacing
1473      pressure by totPhiHyd).
1474    o Updated and merged grdchk package
1475      - has both ADM and TLM checks
1476      - works for single- and multi-proc.
1477      - output cleaned
1478      - worked successfully for parallel DIVA
1479    o genmake:
1480      - Adding -platform=SP4
1481      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1482    o Modif. for DIVA:
1483      ctrl_unpack should not be called in intermediate DIVA interval.
1484      (similar thing would apply for active files such as
1485      tbar, sbar, psbar, which should not be reinitialised;
1486      only relevant for ecco-branch)
1487    
1488    checkpoint48h_post
1489    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1490    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1491    o Added SEAICE_initialHEFF to pkg/seaice
1492    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1493    
1494    checkpoint48g_post
1495    --- EOS:
1496    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1497      store total Potential in totPhyHyd for diagnostics & EOS.
1498    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1499    --- Pressure/geopotential gradient:
1500    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1501    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1502      ( changes results of global_ocean_pressure )
1503    o NLFS + z-coord.: add eta*Rho' contribution.
1504    o accurate phiHyd when using interface-W at the middle between 2 centers
1505     ( changes results of ideal_2D_oce )
1506    o includes r* 2nd term in potential gradient.
1507    
1508    checkpoint48f_post
1509    Merging from release1_p12:
1510    o Modifications for using pkg/exf with pkg/seaice
1511      - improved description of the various forcing configurations
1512      - added basic radiation bulk formulae to pkg/exf
1513      - units/sign fix for evap computation in exf_getffields.F
1514      - updated verification/global_with_exf/results/output.txt
1515    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1516      (SBO) core products, including oceanic mass, center-of-mass,
1517      angular, and bottom pressure (see pkg/sbo/README.sbo).
1518    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1519      to avoid negative values in shallow regions.
1520      - updated verification/natl_box/results/output.txt
1521      - updated verification/lab_sea/results/output.txt
1522    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1523    o Added useSingleCpuIO option (see PARAMS.h).
1524    o Updated useSingleCpuIO option in mdsio_writefield.F to
1525      work with multi-field files, e.g., for single-file pickup.
1526    o pkg/seaice:
1527      - bug fix in growth.F: QNET for no shortwave case
1528      - added HeffFile for specifying initial sea-ice thickness
1529      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1530    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1531      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1532    o pkg/seaice:
1533      - adjoint-friendly modifications
1534      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1535    
1536    checkpoint48e_post
1537    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1538    o dynamics: change definition of computational domain & adapt mom_fluxform
1539      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1540    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1541        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1542        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1543        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1544        inverted_barometer solid-body.cs-32x32x1
1545      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1546    
1547    checkpoint48d_post
1548    o in preparation for r*:
1549     a) use pre-computed gradient of hydrostatic potential:
1550        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1551     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1552        => affects results of glob_oce_pressure (different truncation error)  
1553      update output.txt of ideal_2D_oce & global_ocean_pressure
1554    
1555    checkpoint48d_pre
1556    o in preparation for r*:
1557      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1558      pass the 2 comp. of the grad. as arguments to momentum S/R.
1559      but for the moment, only used if it does not change the results.
1560    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1561    
1562    checkpoint48c_post
1563    Modifications in treatment of initial flux forcing controls
1564    to avoid extra storing of flux fields.
1565    
1566    checkpoint48c_pre
1567    o Added tidal_basin_2d experiment (currently 1D!)
1568    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1569    
1570  checkpoint48b_post  checkpoint48b_post
1571  o r* coordinate added in #ifdef NONLIN_FRSURF block.  o r* coordinate added in #ifdef NONLIN_FRSURF block.
1572   (modification to pressure gradient not yet implemented)   (modification to pressure gradient not yet implemented)

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